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Integumentary.
part of the skin, which is an organ.
Integumentary system
Bones are not part of the integumentary system. They are part of the skeletal system. The skin is the main organ of the integumentary system.
Insects do have an integumentary system. In addition to insects, lice, spiders, mites, centipedes, and crustaceans have an integumentary system.